poole



(No Model.) 3 Sheets-Sheet 1.

G. POOLE.

LOOM FOR WEAVING PILB FABRICS.

( Model.) v 3 Sheets--Sheet 2. G.. POOLE; LOOM FOR WEAVING:v PI-LEFABRICS.

No. 467,726. Patented Jany26, 1892.

U W T [V V m 2% H; 55 a? s 5 a M O 1-; -HHJE H -w- I (No Model.) 3SheetsSheet 3.

G. POOLE. LOOM FOR WEAVING PILE FABRICS.

No. 467.726. Patented Jan. 26, 1892.

INVENTDFQ.

Fi -:6. WITN E SSES'I W UNITED. STATES PATENT OFFICE.

' GEORGE POOLE, OF SANFORD, MAINE, ASSIGNOR TO GEORGE l3. GOODALL ANDTHE SANFORD MILLS, OF SAME PLACE.

LOOM FOR WEAVING PlLE FABRICS.

SPECIFICATION forming part of Letters Patent No. 467,726, dated January26, 1892.

Application filed October 31,1887. Serial No. 253,878. (No model.)

T0 at whom it may concern:

Be it known that I, GEORGE POO E, of Sanford, in the county of York andState of Maine, have invented certain new and useful Improvements inLooms for \Veaving Pile Fabrics, of which the following is aspecification.

My invention relates to looms for weaving, and particularly to pile-wirelooms, so called, adapted to weave plush fabrics, velvets, the.

My improvement I will proceed to describe in connection with theaccompanying drawings, forming a part of this specification,particularly pointing out the invention in the claims hereunto appended.

Of the drawings, Figure 1 represents a perspective view of a loom-frameand so much of the operative parts of a pile-wire loom as is necessaryfor an explanation of my improvements. Fig. 2 represents a plan view ofthe wire inserting and withdrawing carriage and parts immediatelyconnected and cooperating therewith. Fig. 3 represents a front elevationof the means for operating the carriage and some of the associated partsof such means. Fig. 4: represents a perspective view of the wireinserting and withdrawing carriage on an enlarged scale, a wire headbeing shown as engaged by the wire-withdrawing hook or device. Fig. 5 isa perspective view, also on an enlarged scale, of the wirehead magazinedetached. Fig. 6 is a detail View intended to give a clear understandingof the construction and operation of the wirewithdrawinghook or device,and hereinafter more particularly described.

Similar letters of reference designate similar parts wherever theyoccur.

It is not deemed necessary to illustrate a loom for weaving pile fabricsin all of its parts, as my improvements may be fully explained withoutsuch illustration, and they are, besides, applicable to pile-wire loomsof variousconstructions; but for the sake of convenience in the presentdescription reference may be had to the loom shown and described inLetters Patent of the United States No. 369,028, granted to me the 30thday of August, 1887.

In the accompanying drawings, A desigthe crank-shaft for operating thelay or batten, (not shown;) D E, gears for communicating motion from thelower shaft to the crankshaft; F, acounter-shaft arrangedtransversely tothe main shaft for operating the wire motion, and G H gears forcommunicating motion from the lower shaft 13 to thewire-motion-operating shaft F. These parts may be of usual constructionor such as are shown and described in my aforesaid patent.

I designates the carriage, comprising the devices for inserting andwithdrawing the wires, which carriage is adapted to be reciprocated, forthe purpose mentioned, on the bed or guide rail J. In the loom shown anddescribed in my aforesaid patent I have explained as a means forreciprocating the carriage a pendent lever provided with a curved slotin which operates a wrist-pin secured to a rotating disk on acounter-shaft similar to shaft F of the present drawings, said pendentlever being connected with the carriage by means of a lever and links.Vhile this device has not fully answered the purposes for which it wasdesigned, I have found that it is susceptible of such modification as tosuit it the better to meet a proper distribution of leverage and time inthe various movements of the carriage to insert and withdraw the wires.

Having reference particularly to Fig. 3, a designates a disk on theforward end of shaft F, which disk is provided with a wrist-pin Z1,arranged to operate in an angular slotc, formed in a lever d, pivoted atits upper end (1, to the loo m-frame. Lever d is connected at its lowerend by means of a link 6 with carriage-oper-' ating lever f, the latterbeing pivoted at its lower end to the loom-frame and connected at itsupper end with the carriage I by means of a link g. lVit-h thisconstruction we will suppose a wire to have been entirely withdrawn andthe carriage just ready to be operated to insert the same in the shed.At this moment the carriage-operating lever and its adjuncts will be inthe position indicated by dotted lines in Fig. 3, the wrist-pin b ondisk a being in the angle of slot 0 0f pendent lever d, said wrist-pinstanding at a point substantially on a line horizontal with the axis ofthe disk a, on the further rotation of which latter elenates theloom-frame; B, the lower shaft; C, ment in the direction of the arrowthe Wristpin 1) will be made to strike and travel up ward in the angularportion 21 of the slot 0, and in the next quarter of the revolution ofthe disk at, or while the wrist-pin b is traveling to a pointsubstantially perpendicularly above the axis of disk a, the carriagewill be thrown completely in. On the continued rotation of disk awrist-pin b will retraverse the angular portion 21 of slot 0 and passinto the parallel portion 3l-that is, that portion of slot 0 runningparallel with or longitudinally of the lever dthe carriage remainingstationary at the extreme inward point of its travel until the wrist-pinarrives at or a little below a point on a line horizontal with the axisof disk a, and opposite that at which it stood when the carriage was atthe extreme of its outward movement. Disk a continuing to rotate willcarry wrist-pin b down in the parallel portion 31 of slot 0 until saidwrist-pin arrives ata point perpendicularly below the axis of the disk,when upon the further rotation of the latter itwill rise in the portion31 of said slot until it arrives at the point where it was consideredthat it started in the rotation of disk at, the carriage being withdrawnwhile the wrist pin was traversing and retraversing the parallel portion31 of the slot 0.

The result of the operation just recited is to send the carriage in witha quick motion, while the leverage is shortestthat is, while thewrist-pin is moving toward and is nearest the fulcrum-point d of pendentlever cZ-and when but little force or power is required to effect themovement allow the carriage to remain stationary or dwell at the extremeinward point of its movement to give the hook ample opportunity to catchthe wire-head and permit the wrist-pin to travel down in the slot 0 to apoint where it may exert greater leverage on pendent lever d, and thenoperate to draw the carriage out and withdraw the wire with a somewhatslower movement than that by which it was inserted in the shed. Theseveral steps of this operation are substantially just what they shouldbe to effect good work, preserve smoothness of motion, and maintain aperfect equilibrium of leverage in the wire motion, the greatest amountof leverage being employed when the wire is being withdrawn and operatedto cut the pile, and the least when the smallest degree of power isrequired, as when the wire is being inserted in the shed.

h designates a rod or bar adapted to slide in suitable ways connectedwith the frame, and provided on its rear end with a bowl oranti-friction roller i, arranged to travel in the groove j of a cam-diskj, secured on lower shaft B. Extending up from bar h is an arm 7;,connected toathe forward end of wire bar I, which latter device ispivoted at its rear or outer end to the loom-frame.

The construction and timing of the parts just described are such as tomove the free end outward from the wire-head magazine when the carriageis moving forward, so as to insert the wire in the shed and move saidfree end of the wire bar inward after a wire has been inserted and holdor maintain it in its inward position until a wire has been withdrawnand another is to be inserted.

In my present invention I have somewhat modified the construction of thedevices (shown in my patent aforesaid) connected with the carriage I,particularly with reference to the wire-withdrawing hook or device m,which improvements will now be explaincd.

n designates the wire-inserting plate secured to the carriage andadapted to operate against the rear of the wire head 0, to move thelatter and the wire 0 through the race way' or slot in the wire bar intothe shed.

p designates a latch-lever pivoted onthe wire-inserting plate a andadapted to fall in front of the offset q of the wire head 0, in whichposition it is normally held by a spring 19.

The wire-withdrawing hook m consists of a bar adapted to slide insuitable ways formed in the carriage I, and adapted at its forward endto enter the slot or aperture formed in the wire head.- Said bar or hookm is held normally pressed toward the wire head or wire bar by means ofa spring 3, secured at one end to the carriage and operating at its freeend in a notch 25, formed in the side of the bar m. V

a designates a pin adapted to move in suitable ways in the carriage andheld pressed normally toward bar m by a spring 1), as

clearly shown in Fig. 6. The forward end of pin a is constructed toengage a notch in the side of bar on when said bar or hook shall bedrawn back from the wire head against the tension of spring 3 and holdsaid bar or hook locked in its retracted position until released bymoving back pin it against the tension of spring e.

As a means for retracting bar or hook m, I have provided a stud orhandle m, extending up from the rearward end of the bar, and a similarstud or handle a is secured to pin it for pulling the latter backagainst the stress of its spring 0 to release the hook.

The devices described afford very convenient and easily-operated meanswhereby the hook can be quickly thrown out of action and held in suchposition, so that it shall not catch and withdraw a wire, and as easilyand quickly released and returned to operative position.

M designates the wire head magazine adapted to receive and hold theheads of the wires inserted by the carriage until the same shall bewithdrawn by the hook or bar on. w designates the cam-shaped piece onthe side of the wire-head magazine M, adapted to engage the arm as ofthe latch p and raise said latch as it moves over the wire-head magazineand releases thelatch from the wirehead.

It will be seen that latch p is brought in front of the oflset q of thewire head 0' by the operation of spring 1) as soon as the wire head iswithdrawn from the wire-head magazine M, and as the wire head moves intothe magazine the latch 12 is raised over the latter. By the meansdescribed the wire will be held steadily and moved in a straight linewith the carriage, there being no liability of the tipping up of theforward end of the wire in withdrawing it from the fabric or of said endof the wire plunging downward or shooting upward when being inserted inthe shed, or of the wire head of the wire being operated upon leavingthe carriage in its movement to and from the magazine, and the latch 19having no lateral movement, as is common in some constructions, themeans connected with the carriage for engaging and releasing the wirehead are rendered very simple in construction and arrangement, so as notto be easily disorganized, and they are at the same time certain andefficient in their operation.

As the carriage moves forward and the free end of the wire bar Z movesoutward,as from its full to its dotted line position in Fig. 2, the wirehead will be withdrawn from its connection with the hook or bar m, andthe latter, as it passes into the wire-head magazine M between the topplate 1 and base-plate z, will pass around to the side of the mostforward wire head in the magazine and withdraw the same in the mannerhereinbefore explained, the cam shape given to the operative end of thehook or bar on affording means whereby the latter will be made to movearound the wire head against the stress of spring 8.

Although I have been particular to describe the form and arrangement ofthe several parts constituting my improvements as they are Having thusdescribed my invention, what I claim is l. The wire-inserting carriage,combined with a longitudinally-movable wire-withdrawing hook having itsbearings in the carriage, a spring to hold said hook normally pressedforward, a notch in the side of said hook, and a spring-pressed pin toengage said hook in said notch when the hook is drawn back,substantially as set forth.

2. A wire-head magazine provided with a cam-piece to, combined with acarriage and means for operating it, a latch pivoted on said carriageand provided with an arm (E, a spring for holding said latch down in itsnormal position, a wire-inserting plate, and a wire bar, as set forth.

3. A wire-head magazine provided with a cam-piece to, combined with acarriage and means for operating it, a latch pivoted on said carriageand provided with an arm a spring for holding said latch down in itsnormal position, a wire-withdrawing hook, a wireinserting plate, anda'wire bar, as set forth.

4:. The combination, with the slide, of the hook m,provided with a notch25 and pin m, spring 8, pin to, provided with pin it, and spring 1), asset forth.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, this 20th day of October, 1887.

GEORGE POOLE.

\Vitnesses: I

ARTHUR W. ORossLEY, A. D. HARRISON.

